Visual and refractive outcome of MyoRing implantation in Sudanese keratoconus patients

Aim: This study aimed to evaluate the visual and refractive outcome of MyoRing implantation in patients with keratoconus. Materials and Methods: A total of 8 eyes from 8 patients who consecutively underwent MyoRing implantation were studied. The main parameters evaluated included keratometry readings, refractive status, and visual acuity. Clinical data were evaluated preoperatively and 3 months postoperation. Results: A statistically significant flattening of corneal contours and significant improvement of the spherical equivalent of refraction were noted 3 months after surgery with P values of <0.001 and 0.006, respectively. Significant improvement was also detected in unaided postoperative visual acuity compared with preoperative unaided (P < 0.001) and corrected visual acuity (P = 0.002). Conclusion: MyoRing implantation allows a significant reduction of myopia and astigmatic refractive errors resulting from keratoconus because of the corneal flattening induced, which significantly contributes to the improved visual outcomes.